This has been going on for four months. The first month, I knew about. The second month, I missed it on my credit card bill. The third month, it wasn't on my credit card bill to catch and this fourth month, I was charged twice and I caught it. So, I have just been charged $120 on a service I haven't used and charged another $25 fee to stop a service I didn't want and didn't know I had.
Needless to say, this is me, telling you, if you do not plan to use a T-Mobile account for months in a row on a regular basis, do not subscribe to T-Mobile or be damn careful to immediately cancel your account.